Fire alarm device

Abstract

The utility model provides a fire alarm device which comprises a shell, a fire alarm unit is arranged in the shell, a grating and a vertical rod are arranged on the shell, the vertical rod is slidably sleeved with a lower clamping block, the top end of the vertical rod is fixedly sleeved with an upper clamping block, the longitudinal section of the upper clamping block is in an isosceles trapezoid shape, and the lower clamping block and the upper clamping block are in mirror symmetry; the mounting plate is arranged on the inner top surface of the prefabricated cabin, and a first sliding groove matched with the upper clamping block is formed in the mounting plate; and the two elastic pieces are located on the two sides of the first sliding groove correspondingly and slidably connected with the mounting plate, and sliding blocks matched with the left side wall and the right side wall of the upper clamping block are arranged at the end, close to the first sliding groove, of each elastic piece. The process of mounting the shell on the mounting plate or dismounting the shell from the mounting plate is easy to operate, so that the efficiency of mounting the shell on the mounting plate or dismounting the shell from the mounting plate is improved.

Description

Technical Field

[0001] This application relates to the technical field of fire, and particularly relates to a fire alarm device. Background Art

[0002] In recent years, with the rapid development of energy storage technology, more and more large-scale energy storage battery prefabricated cabins have been applied to the power system (for example: prefabricated cabins for lithium iron phosphate battery energy storage). During the charging and discharging process of the battery, chemical reactions occur, resulting in heat generation and temperature rise. During the energy storage process of the battery, combustible gases will be released (for example: CO, H 2 etc.). When the combustible gas encounters a high-temperature heat source, it will explode and then cause a fire. In order to avoid fires in the prefabricated cabin, a fire alarm device is needed to monitor the fire situation in the prefabricated cabin and give an alarm prompt in time when a fire is detected.

[0003] When the existing fire alarm device is installed, it is generally fixed to the prefabricated cabin by bolts. However, since it is exposed to the air for a long time, dust in the air will fall on the surface of the fire alarm device. Long-term placement may cause dust accumulation on the surface of the fire alarm device. When a fire occurs, due to dust obstruction, the fire alarm device may not be able to sense the smoke and temperature generated by the fire, etc., and thus cannot give an alarm in time. Therefore, the staff needs to regularly maintain and service the automatic monitoring and alarm device. The method of fixing the fire alarm device to the prefabricated cabin by bolts in the existing technology is relatively cumbersome, which is not conducive to the staff to quickly disassemble and assemble the fire alarm device during maintenance. Utility Model Content

[0004] This application provides a fire alarm device to solve the technical problems recorded in the above background art.

[0005] To solve the above technical problems, the following technical solutions are adopted in this application:

[0006] This application provides a fire alarm device, including:

[0007] A housing, in which a fire alarm unit is arranged, and on which a grille and a vertical rod are arranged. A lower clamping block is slidably sleeved on the vertical rod, and an upper clamping block with an isosceles trapezoid cross-section is fixedly sleeved at its top end. The lower clamping block and the upper clamping block are mirror-symmetrical;

[0008] An installation plate, which is arranged on the inner top surface of the prefabricated cabin, and on which a first chute matching the upper clamping block is opened;

[0009] Two elastic members, which are respectively located on both sides of the first chute and are both slidably connected to the installation plate. At one end of each elastic member close to the first chute, a slider matching the left and right side walls of the upper clamping block is arranged.

[0010] Optionally, two second chutes that match the sliders are horizontally opened on both sides of the first chute on the mounting plate.

[0011] Optionally, both of the elastic members include a connecting rod, a limiting ring, and a compression spring;

[0012] One end of the connecting rod passes through the limiting ring and is connected to the slider, and the compression spring is sleeved on the connecting rod and its two ends are respectively connected to the slider and the limiting ring.

[0013] Optionally, the mounting plate includes a first connecting plate and a second connecting plate that are perpendicular to each other;

[0014] The first connecting plate is arranged on the inner top surface of the prefabricated cabin, and the first chute is vertically opened on the second connecting plate.

[0015] Optionally, a threaded through hole is opened on the first connecting plate, a threaded hole is opened on the inner top surface of the prefabricated cabin, and a fastening bolt for fixing the first connecting plate on the inner top surface of the prefabricated cabin is sequentially passed through the threaded through hole and the threaded hole.

[0016] Optionally, the fire alarm unit includes a processing unit, a smoke detector, and an alarm;

[0017] The processing unit, the smoke detector, and the alarm are all arranged in the housing, and the smoke detector and the alarm are both electrically connected to the processing unit.

[0018] Optionally, the alarm is an audible and visual alarm.

[0019] The fire alarm device provided by this application, under the action of external force (such as the operation of staff), the upper clamping block on the vertical rod slides vertically upward along the first chute, so that the slider on the elastic member slides downward along the two side walls of the upper clamping block to the bottom of the upper clamping block (after the slider is subjected to the extrusion force of the upper clamping block relative to the two side walls of the first chute, the slider drives the elastic member to slide away from the upper clamping block, and when the slider slides relatively to the bottom of the upper clamping block, this extrusion force disappears), thereby realizing the fixation of the housing and the mounting plate. Since the longitudinal section of the upper clamping block is an isosceles trapezoid (that is, the width of the bottom of the upper clamping block is greater than the width of its top), the connection stability between the housing and the mounting plate is higher. Then, the fire alarm unit in the housing is used to detect fire and issue an alarm when a fire is detected, so as to achieve the purpose of fire alarm. In addition, when maintaining and servicing the fire alarm unit in the housing, under the action of external force, the upper clamping block on the vertical rod continues to slide vertically upward along the first chute until the top of the lower clamping block moves to contact the slider. Then, continue to move the vertical rod upward, and the slider drives the elastic member to slide toward the lower clamping block until the slider slides relatively to the bottom of the lower clamping block. At this time, the external force is removed, and under the action of the gravity of the vertical rod and the upper clamping block, the vertical rod and the upper clamping block move vertically downward. Since the lower clamping block is slidably connected to the vertical rod and the slider has a supporting effect on the lower clamping block, until the bottom of the upper clamping block contacts the top of the lower clamping block. Then, under the action of external force, continue to pull the vertical rod downward to move the upper clamping block downward, and the slider slides relatively from the bottom of the lower clamping block to the top of the lower clamping block and then relatively to the top of the upper clamping block, thereby realizing the separation of the housing and the mounting plate. The process of installing the above housing onto the mounting plate or disassembling it from the mounting plate is easy to operate, thus improving the efficiency of installing the housing onto the mounting plate or disassembling it from the mounting plate. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 Structural schematic diagram of a prefabricated cabin provided by an embodiment of the present application;

[0022] Figure 2 Structural schematic diagram of a housing provided by an embodiment of the present application;

[0023] Figure 3 Internal structural flow block diagram of a fire alarm unit provided by an embodiment of the present application;

[0024] Figure 4Schematic structural diagram of a fire alarm device provided by an embodiment of the present application;

[0025] Figure 5 Schematic structural diagram of a fire alarm device provided by another embodiment of the present application;

[0026] Figure 6 Schematic structural diagram of a fire alarm device provided by another embodiment of the present application;

[0027] Figure 7 Schematic structural diagram of a fire alarm device provided by another embodiment of the present application;

[0028] Figure 8 Schematic structural diagram of a mounting plate provided by an embodiment of the present application.

[0029] In the figure: 100, housing; 101, grille; 102, vertical rod; 1021, lower clamping block; 1022, upper clamping block; 1023, limiting ring; 200, fire alarm unit; 201, processing unit; 202, smoke detector; 203, alarm; 300, mounting plate; 301, first chute; 302, second chute; 303, first connecting plate; 3031, threaded through-hole; 304, second connecting plate; 400, prefabricated cabin; 500, elastic member; 501, connecting rod; 502, limiting ring; 503, compression spring; 600, slider; 700, fastening bolt. Detailed implementation manners

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts also belong to the scope of protection of the present application.

[0031] Refer to Figures 1 to 8 , the present application provides a fire alarm device, including:

[0032] A housing 100, in which a fire alarm unit 200 is provided, and a grille 101 and a vertical rod 102 are provided thereon (wherein, the grille 101 is opened on the side wall of the housing 100 (such as Figure 2As shown, the vertical rod 102 is arranged at one end of the housing 100 away from the grille 101. A lower clamping block 1021 is slidably sleeved on the vertical rod 102, and an upper clamping block 1022 with an isosceles trapezoid cross-section is fixedly sleeved at the top end of the vertical rod 102. The lower clamping block 1021 and the upper clamping block 1022 are mirror-symmetrical. Among them, the grille 101 is used for smoke to enter the housing 100 during a fire, and the fire alarm unit 200 is used to detect the specific situation of the fire and issue an alarm. Both the upper clamping block 1022 and the lower clamping block 1021 can be in the shape of a frustum of a pyramid, which can be specifically set according to actual needs, and the present application does not make specific limitations on this here. In addition, the lower clamping block 1021 can move vertically upward along the vertical rod 102 under the action of an external force, and after the external force disappears, the lower clamping block 1021 slides vertically downward along the vertical rod 102 under its own gravity (the self-gravity of the lower clamping block 1021 is greater than the friction between the lower clamping block 1021 and the vertical rod 102) until it abuts against the housing 100.

[0033] The mounting plate 300 is arranged on the inner top surface of the prefabricated cabin 400, and a first sliding groove 301 matching the upper clamping block 1022 is opened thereon. Among them, in order to ensure the stability of the connection between the mounting plate 300 and the inner top surface of the prefabricated cabin 400, the mounting plate 300 can be fixedly connected to the inner top surface of the prefabricated cabin 400 through fasteners. In addition, both the upper clamping block 1022 and the lower clamping block 1021 match the first sliding groove 301 and both can move vertically up and down in the first sliding groove 301.

[0034] Two elastic members 500 are respectively located on both sides of the first sliding groove 301 and are both slidably connected to the mounting plate 300. A slider 600 matching the left and right side walls of the upper clamping block 1022 is arranged at one end of each elastic member 500 close to the first sliding groove 301. Among them, the longitudinal section of the slider 600 is a right triangle, and the side surface thereof close to the upper clamping block 1022 is parallel to the two side walls of the upper clamping block 1022 relative to the first sliding groove 301.

[0035] The fire alarm device provided by this application, under an external force (such as the operation of a staff member), the upper clamping block 1022 on the vertical rod 102 slides vertically upward along the first chute 301, so that the slider 600 on the elastic member 500 slides downward relative to the two side walls of the upper clamping block 1022 to the bottom of the upper clamping block 1022 (after the slider 600 is subjected to the extrusion force of the upper clamping block 1022 relative to the two side walls of the first chute 301, the slider 600 drives the elastic member 500 to slide away from the upper clamping block 1022, and when the slider 600 slides relatively to the bottom of the upper clamping block 1022, this extrusion force disappears), thereby realizing the fixation of the housing 100 and the mounting plate 300. Since the longitudinal section of the upper clamping block 1022 is an isosceles trapezoid (that is, the width of the bottom of the upper clamping block 1022 is greater than the width of its top), the connection stability between the housing 100 and the mounting plate 300 is higher. Then, the fire alarm unit 200 in the housing 100 is used to detect a fire and issue an alarm when a fire is detected, thereby achieving the purpose of fire alarm. In addition, when maintaining and servicing the fire alarm unit 200 in the housing 100, under an external force, the upper clamping block 1022 on the vertical rod 102 continues to slide vertically upward along the first chute 301 until the top of the lower clamping block 1021 moves to contact the slider 600. Continuing to move the vertical rod 102 upward, the slider 600 drives the elastic member 500 to slide toward the lower clamping block 1021 until the slider 600 slides relatively to the bottom of the lower clamping block 1021 (as Figure 6 shown). At this time, the external force is withdrawn. Under the gravity of the vertical rod 102 and the upper clamping block 1022, the vertical rod 102 and the upper clamping block 1022 move vertically downward. Since the lower clamping block 1021 is slidably connected to the vertical rod 102 and the slider 600 has a supporting effect on the lower clamping block 1021, until the bottom of the upper clamping block 1022 contacts the top of the lower clamping block 1021. Then, under an external force, continue to pull the vertical rod 102 downward to move the upper clamping block 1022 downward, and the slider 600 slides relatively from the bottom of the lower clamping block 1021 to the top of the lower clamping block 1021 and then relatively to the top of the upper clamping block 1022 (as Figure 7 shown), thereby realizing the separation of the housing 100 and the mounting plate 300. The process of installing the housing 100 onto the mounting plate 300 or disassembling it from the mounting plate 300 is easy to operate, thereby improving the efficiency of installing the housing 100 onto the mounting plate 300 or disassembling it from the mounting plate 300.

[0036] Wherein, a limiting ring 1023 is sleeved on the bottom rod body of the vertical rod 102. The height of the limiting ring 1023 is higher than the height of the lower clamping block 1021, and the width of the limiting ring 1023 is smaller than the width of the first chute 301, so that when the top of the lower clamping block 1021 contacts the slider 600, there is still space to move upward until its bottom contacts the slider 600.

[0037] In some embodiments, referring to Figure 4 , Figure 5 , Figure 6 and Figure 7 , on both sides of the first chute 301 on the mounting plate 300 in the present application, two second chutes 302 matching the slider 600 are horizontally provided. Among them, the slider 600 can slide left and right in the second chute 302. Specifically, after the upper clamping block 1022 exerts a squeezing force on the two side walls of the first chute 301, the slider 600 drives the elastic member 500 to slide in a direction away from the upper clamping block 1022. When the slider 600 slides relatively to the bottom of the upper clamping block 1022, the squeezing force disappears. The slider 600 returns to the initial position under the elastic force of the elastic member 500. The arrangement of the elastic member 500 and the slider 600 realizes the clamping of the slider 600 and the upper clamping block 1022, thereby improving the stability of the housing 100 fixed on the mounting plate 300.

[0038] In some embodiments, referring to Figure 4 , Figure 5 , Figure 6 and Figure 7 , the two elastic members 500 in the present application both include a connecting rod 501, a limiting ring 502 and a compression spring 503; among them, the limiting ring 502 is fixedly connected to the mounting plate 300.

[0039] Specifically, one end of the connecting rod 501 passes through the limiting ring 502 and is connected to the slider 600. The compression spring 503 is sleeved on the connecting rod 501 and its two ends are respectively connected to the slider 600 and the limiting ring 502. After the upper clamping block 1022 exerts a squeezing force on the two side walls of the first chute 301, the slider 600 moves in the second chute 302 in a direction away from the upper clamping block 1022. When the compression spring 503 is compressed under the squeezing force of the slider 600, and after the squeezing force received by the slider 600 disappears, the compression spring 503 returns to the initial state and exerts a thrust on the slider 600 to approach the first chute 301, so that the slider 600 returns to the initial state, thereby realizing the clamping of the slider 600 and the upper clamping block 1022, thereby improving the stability of the housing 100 fixed on the mounting plate 300.

[0040] In some embodiments, referring to Figure 8, the mounting plate 300 in the present application includes a first connecting plate 303 and a second connecting plate 304 that are perpendicular to each other; specifically, the first connecting plate 303 is disposed on the inner top surface of the prefabricated cabin 400, and a first sliding groove 301 is vertically formed in the second connecting plate 304. For example, the first sliding groove 301 is formed downward at the middle position of the second connecting plate 304. Among them, in order to ensure the stability of the connection between the first connecting plate 303 and the inner top surface of the prefabricated cabin 400, the first mounting plate 300 can be fixedly connected to the inner top surface of the prefabricated cabin 400 through fasteners.

[0041] During the actual installation process, the first mounting plate 300 is installed on the inner top surface of the prefabricated cabin 400 through fasteners. The upper clamping block 1022 and the lower clamping block 1021 on the vertical rod 102 slide vertically up and down in the first sliding groove 301 on the second connecting plate 304 to realize the clamping or separation of the upper clamping block 1022 and the slider 600, thereby realizing the installation or disassembly of the housing 100 and the mounting plate 300, and improving the installation or disassembly efficiency of the housing 100 and the mounting plate 300.

[0042] In some embodiments, refer to Figure 8 , a threaded through hole 3031 is formed in the first connecting plate 303 in the present application, and a threaded hole is formed in the inner top surface of the prefabricated cabin 400. A fastening bolt 700 for fixing the first connecting plate 303 to the inner top surface of the prefabricated cabin 400 is sequentially penetrated through the threaded through hole 3031 and the threaded hole. Among them, the threaded through hole 3031 and the threaded hole are both matched with the fastening bolt 700. Specifically, the screw end of the fastening bolt 700 sequentially penetrates through the threaded through hole 3031 and the threaded hole to realize the fixed connection between the first connecting plate 303 and the inner top surface of the prefabricated cabin 400, and improve the stability of the connection between the first connecting plate 303 and the prefabricated cabin 400.

[0043] In some embodiments, refer to Figure 3 , the fire alarm unit 200 in the present application includes a processing unit 201, a smoke detector 202, and an alarm 203; specifically, the processing unit 201, the smoke detector 202, and the alarm 203 are all disposed in the housing 100, and the smoke detector 202 and the alarm 203 are both electrically connected to the processing unit 201. Among them, the specifications, models, etc. of the smoke detector 202 and the alarm 203 can be selected according to actual needs. Therefore, the present application does not further limit them.

[0044] In the above embodiments, when the smoke detector 202 detects a fire smoke, the smoke detector 202 sends the signal to the processing unit 201, and the processing unit 201 controls the alarm 203 to issue an alarm, prompting the staff to make an emergency response to the fire in time, thereby avoiding the spread of the fire.

[0045] In some embodiments, the alarm 203 in the present application is an audible and visual alarm 203. Among them, the audible and visual alarm 203 can simultaneously emit two types of alarm signals, namely sound and light, so as to issue an alarm simultaneously through sound and light, thereby improving the alarm efficiency.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A fire alarm device, characterized in that: include: A shell (100), wherein a fire alarm unit (200) is arranged in the shell (100) and a grille (101) and a vertical rod (102) are arranged on the shell; a lower clamping block (1021) is slidably sleeved on the vertical rod (102) and an upper clamping block (1022) having an isosceles trapezoidal longitudinal section is fixedly sleeved on the top of the vertical rod (102); the lower clamping block (1021) and the upper clamping block (1022) are mirror-symmetrical; A mounting plate (300), the mounting plate (300) being arranged on the inner top surface of the prefabricated cabin (400) and having a first sliding groove (301) matching the upper clamping block (1022); Two elastic members (500), the two elastic members (500) are respectively located on both sides of the first slide groove (301) and are both slidably connected to the mounting plate (300), and a sliding block (600) matching the left and right side walls of the upper clamping block (1022) is provided at one end of each elastic member (500) close to the first slide groove (301).

2. The fire alarm device according to claim 1, characterized in that: Two second sliding grooves (302) matching the sliding block (600) are respectively horizontally opened on both sides of the first sliding groove (301) on the mounting plate (300).

3. The fire alarm device according to claim 1, characterized in that: The two elastic members (500) each comprise a connecting rod (501), a limiting ring (502) and a compression spring (503); One end of the connecting rod (501) passes through the limiting ring (502) and is connected to the slider (600); the compression spring (503) is sleeved on the connecting rod (501) and its two ends are respectively connected to the slider (600) and the limiting ring (502).

4. The fire alarm device according to claim 1, characterized in that: The mounting plate (300) comprises a first connecting plate (303) and a second connecting plate (304) which are perpendicular to each other; The first connecting plate (303) is arranged on the inner top surface of the prefabricated cabin (400), and the first sliding groove (301) is vertically opened in the second connecting plate (304).

5. The fire alarm device according to claim 4, characterized in that: A threaded through hole (3031) is provided on the first connecting plate (303), and a threaded hole is provided on the inner top surface of the prefabricated cabin (400). Fastening bolts (700) for fixing the first connecting plate (303) on the inner top surface of the prefabricated cabin (400) are sequentially passed through the threaded through hole (3031) and the threaded hole.

6. The fire alarm device according to any one of claims 1 to 5, characterized in that: The fire alarm unit (200) comprises a processing unit (201), a smoke detector (202) and an alarm (203); The processing unit (201), the smoke detector (202) and the alarm (203) are all arranged in the housing (100), and the smoke detector (202) and the alarm (203) are both electrically connected to the processing unit (201).

7. The fire alarm device according to claim 6, characterized in that: The alarm (203) is an audible and visual alarm.

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